Job Description

Toolmaker – Injection Mold
Location: Oklahoma City, OK
Pay: $35/hour (negotiable based on experience)
Schedule: Monday–Thursday, 7:30 AM – 5:30 PM

About ACO Plastics

ACO Plastics is a unique, growth-oriented plastics manufacturer operating as “two companies in one.” We design and manufacture our own food service products while also partnering directly with customers to develop new plastic products from concept to production.

Our team values creativity, hands-on innovation, and ownership. Employees enjoy real autonomy, strong retention (10+ year average tenure), and the opportunity to work closely with leadership. If you want freedom to build, create, and problem-solve — this is the place.

We are seeking a skilled, hands-on Injection Mold Toolmaker to join our in-house team immediately. This role is 100% onsite and ideal for someone with strong design, CNC, and CAD experience who takes pride in precision craftsmanship and creative problem-solving.

You will be responsible for designing, building, modifying, and maintaining injection molds that directly impact product quality and production efficiency.

Key Responsibilities

• Design, build, repair, and modify injection molds for plastic part production
  
• Program and operate CNC equipment (Mazak or equivalent)
  
• Utilize CAD/CAM software to support mold design and toolpath development
  
• Machine precision components using CNC mills, manual mills, lathes, grinders, and EDM
  
• Troubleshoot tooling and part-quality issues using root-cause analysis
  
• Interpret engineering drawings, GD&T, mold layouts, and part specifications
  
• Collaborate directly with engineering on DFM recommendations and product improvements
  
• Support mold sampling, validation, and production optimization
  
• Maintain tooling documentation and revisions
  

Compensation & Benefits

• $35/hour (negotiable based on experience)
  
• 50% employer-paid medical insurance
  
• 60% employer-paid dental insurance
  
• IRA with 3% company match
  
• 8 paid holidays per year
  
• 40 hours of vacation (increases 10 hours per year up to 120 hours)
  
• Company events and team parties
  
• Tool replacement support/advances

Requirements

Must-Have Qualifications

• Strong mold design experience
• CNC machining and programming experience
• CAD/CAM proficiency
• 5+ years of injection mold toolmaking experience in a plastics or manufacturing environment
• Solid understanding of mold construction, gating, cooling, steel selection, and tolerances
• Ability to work independently with minimal supervision

Preferred Experience

• High-cavitation molds and hot runner systems
• Mold flow analysis or simulation software
• Experience optimizing injection molding cycles and materials
• Experience working in high-volume production environments